Conveyer.



PATENTED SEPT. 24, 1907. J. M. GRIFFITH. OONVEYER v APPLICATION FILEDJUNE l7 1907.

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INVENZOR.

No. 867,124. v PATENTED SEPT. 24, 1907.

- J. M. GRIFFITH.

GONVBYBR.

APPLICATION FILED JUNE 17, 1907.

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W TNESSES I A TTORNE Y5 UNITED STATES PATENT OFFICE.

' CONVEYER.

Specification of Letters Patent.

Patented Sept. 24:, 1907.

Application filed June 17,1907. Serial No. 379,461.

To all'whom it may concern:

Be it known that I, JOSEPH M. GRIFFITH, a citizen of the United States,residing at Cardiff, in the county of Harford and State of Maryland,have invented a new and useful Conveyer, of which the following is aspecification.

This invention relates to conveying mechanism of that general class inwhich a wheeled bucket or carrier is traveled on an elevated cable orsupport between filling and dumping position.

One of the principal objects of the invention is to provide. an improvedmeans for insuring dumping of the load at any desired point.

A further object of the invention is to provide a dumping devicesupported by an adjustable carriage and arranged to be engaged and toform a rest and stop for the fall block and the load carrier.

With these and other objects in view, as will more fully hereinafterappear, the invention consists in certain novel features of constructionand arrangement of parts, hereinafter fully described, illustrated inthe accompanying drawings, and particularly pointed out in the appendedclaims, it being understood that various changes in the'form,proportions, size and minor details of the structure may be made withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

In the accompanying drawings :Figure 1 is an elevation of a conveyerconstructed and arranged in accordance with the invention. Fig. 2 is adetail view on an enlarged scale of the dumping mechanism prior to thedumping operation. Fig. 3 is a sectional plan view on the line 33 ofFig. 2.

Similar numerals of reference are employed to indi cate correspondingparts throughout the several figures of the drawings.

Extending between suitable towers or posts 10ll is a cable or track-way15 that extends over the loading pit or point A and the dumping point B.

Mounted on the cable is a fall carriage 16 having a pair of supportingwheels 17 that are grooved for the reception of the cable, and from theshafts of these wheels is hung a frame 18 carrying a pair of sheaves 19and20.

Below the sheaves 19 and 20 is hung a fall block 21 having a pendenthook 22 on which is hung a tiltable load receiver 23. The fall rope 24is connected at one end to the frame of the fall block, thence passes uparound the sheave 20, down under the fall block, up over the sheave 19,and from thence around suitable guiding sheaves to the hoisting drum E.

The hoisting drum E is arranged to be operated from an engine F that islocated adjacent the post 11, any suitable means being employed forcontrolling the connection and disconnection of the drum and engine. Theengine is, also, arranged to operate the drum G over which passes theintermediate portion of a fall cable 28 that is guided by suitablesheaves at the top of the post 10. The lower run of the fall cable isconnected to the carriage 16 at 29, and the upper run of this cableextends to the distant post 10 where it passes around a sheave 30, andthence runs back and is connected to the carriage 16 at the point 3].,so that by turning the drum first in one direction afid then in theother direction the carriage 16 will be traveled between the loading anddumping points. Above the dumping point is arranged a carriage 35 havingsupporting wheels 36 that rest on a cable 15 and which may be lockedthereto in any suitable manner, the position of this carriage beingadjustable in order to vary the dumping point. l-hpm the shafts of thesupporting wheels 36 is hung a frame 38. On this frame is pivoted alever 41 having a bifurcated lower end that is arranged to form a pairof hooks 42 which are arranged to receive the opposite ends of a bar 43that projects from the frame of the fall block. The rear portion of thelever 41 is pivotally connected with the bifurcated end of a rod 46, theopposite end of said rod having a number of spaced openings through anyone of which may pass a bolt 47 carried by a depending bracket 48 on theframe of the carriage, this rod being adjustable to vary the extent towhich the hooks project from the forward face of the carriage 35.

When the load receiver is in the position shown in Fig. 1 and is loaded,the winding drum G is turned and the cable 24 is wound up until the loadreceiver is fully raised. The fall block and load receiver are then heldup by maintaining the friction on the drum E and the drum G is thenturned-for the purpose of pulling on the upper run of the pull cable, sothat the carriage 16 will contact with the stop carriage 40. The drum Gis then stopped and the drum E is released allowing the fall block tosettle until the cross bar 43 engages in the hooks 42. On furtherdownward movement the load receiver will be tilted to the position shownby dotted lines in Fig. 2 by reason of the fact that the rear or closedend of the load receiver is connected to the frame of the fall block bya chain or bar 50.

After the dumping of the load, the hoisting cable is again wound upuntil the fall block is clear of the hooks, and then the haul cable isoperated for the purpose of drawing the carriage and load receptacleback to the loading point.

I claim 1. In conveying mechanism, a supporting cable or track, adumping carriage on the cable, a fall block, a fall block carriage, ahoisting rope connected to the fall block a traction rope connectedtothe fall block carriage, a bar projecting from the frame of the fallblock, a load receiver, the rear edge of which is connected to said bar,and hooks adjustably secured to the dumping carriage and with which saidbar engages.

be run along the supporting cable until it comes into 2. In conveyingmechanism, a dumping carriage, a lever pivoted thereto and provided atits lower end with a pair of spaced hooks, a rod adjustably connectingthe lever to a portion of the carriage, a fallblock carriage arranged totravel on the cable, a fall block, a hoisting rope carry ing the fallblock, a traction rope connected to the fall block carriage, a barprojecting from the fall block frame and provided with a pair oflaterally extended arms arranged to engage the hooks, a load receiver,and a connecting means between the rear portion of the load reeeiver andthe bar.

3. In mechanism of the class described, a supporting cable, a fall blockcarriage arranged to travel thereon, a fall block, a frame carrying thesame, a hoisting rod having one end connected to the frame and extendingaround the fall block, and thence to a winding mechanism, a barprojecting from the fall block frame, a load receptacle hung from thefall block frame, and connecting means between the rear end of suchreceptacle and the frame, a dumping carriage supported by the cable andincluding a wheeled frame, a lever pivoted to said dumping carriage andhaving a bifurcated end provided with terminal hooks for engagement withthe bar of the fall block, an adjusting lever connecting the hookedlever to the frame of the dumping carriage, and a haul rope, the ends ofwhich are secured to the fall block carriage, the intermediate portionof the haul rope passing around the winding drum.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

JOSEPH M. GRIFFITH. Witnesses:

Isaac H. STUBBS, JOSEPH GRIFFITH, Senr.

